Early stage of the nuclear explosion during Operation Trinity, 16 Jul 1945

Caption   Early stage of the nuclear explosion during Operation Trinity, 16 Jul 1945 ww2dbase
Source    ww2dbaseUnited States Government
More on...   
Operation Trinity and Manhattan Project   Main article  Photos  
Photos on Same Day See all photos dated 16 Jul 1945
Added By C. Peter Chen
Added Date 3 Aug 2007

This photograph has been scaled down; full resolution photograph is available here (991 by 686 pixels).

Licensing  Public Domain. According to the United States copyright law (United States Code, Title 17, Chapter 1, Section 105), in part, "[c]opyright protection under this title is not available for any work of the United States Government".

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Visitor Submitted Comments

1. Commenter identity confirmed Bill says:
12 Mar 2011 10:13:09 PM

TRINITY SITE, ALAMOGORADO TEST RANGE July 16,1945 at 05:29:45 photo shows 0.025 seconds after detonation, 20 kilotons of TNT the begining of the Atomic age. THE TRINITY SITE TODAY: In 1952 the site was bulldozed, December 1965 the 51,500 acre area was declared a National Historic Landmark. Sixty years after the test,residual radiation at the site is about ten times higher than normal. How many more years will it take for all the radiation to dissipate.
2. Commenter identity confirmed Bill says:
26 Apr 2011 07:23:45 PM

A HOT PLACE TO SEE: A lava rock obelisk erected in 1965 marks the spot where the first atomic bomb exploded. Looking around the area, its like it was in July 1945, you can see part of the tower footings the blast crater isn't deep because the bomb was on top of the tower when it went off creating a cushion of air under the bomb. BELIEVE WHAT YOU WANT: WHO NEEDS ALL THAT RADIATION, DON'T YOU GET ENOUGH EVERYDAY... An invisible legacy of the atomic age, is the radiation that's still in the area even after sixty years, your still able to pickup anywhere from .5 to 1 milliroentgens during an hour stay at Ground Zero, but fear not, and I'm no scientist, I've read you get about 20 milliroentgens during an X-ray, that's about one thousandth of a roentgen. Milliroentgens: One Thousandth of a Roentgen, the roentgen is a unit of measurement for exposure to ionizing radiation. Named after German Scientist Wilhelm Rontgen.
3. Commenter identity confirmed Bill says:
27 Apr 2011 06:43:16 PM

AFTER THE BOMB DROPPED: August 6,1945 the B-29 Enola Gay dropped the first atomic bomb on Hiroshima,Japan. Within seconds 148,000 people were killed immediately, an area (0.3) half-kilometer radius was destroyed. Many others died in the aftermath of the bomb, by 1946 an estimated 90,000 to 166,000 people had died from the immediate and after-effects. Within three years countless people died from radiation, its full magnitude is still being studied. By 1950 the death toll was 340,000 people. COLD WAR TESTING: MORE BANG FOR THE BUCK AND THE BOMBS, KEPT ON GETTING BIGGER AND... During the Cold War, 119 Atomic tests took place, after 1962 1,000 more underground tests were conducted. Atomic Warfare, Death, Disease, Destruction, Whole Cultures Wiped Out, It Would Frighten Any Sane Person....

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